external IP（@Firefox Add-ons）Updated to 0.9.9.3

Version 0.9.9.3 — February 2, 2008 — 6 KB

-Small fix that prevents the extension from crashing if a host does not respond correctly
-None responding host address removed from the source code

終於修正了 Host 沒回應時，會造成 Firefox 當掉的 Bug。